Overview
The Quest QXD-2K is a 1RU four channel Class-D installation amplifier rated at 4 x 500 W peak per channel into 8 ohm, 4 ohm, 70V or 100V. Every channel handles low impedance or distributed line duty, so you can run point source speakers in the main room and 100V ceiling zones in the foyer from the same amp.
Onboard 32-bit/96 kHz DSP covers FIR and IIR filtering, limiting, delay and the Quest speaker library, so the tuning for a Qi or MX speaker loads straight from the amp. It suits mid-sized churches, school halls, function rooms and multi-zone venues. If you need network audio, choose the QXD-2KD.
Highlights
- 4 x 500 W peak per channel into 8 ohm, 4 ohm, 70V or 100V
- Mix low impedance and 100V zones on one amplifier
- 32-bit/96 kHz DSP with FIR/IIR filters, limiters, delay and Quest speaker presets
- Front TFT display and encoder, RJ45 network and GPIO control
- Q-SYS Designer plugin and REST API available
- Quest lists a Dante expansion card for QXD amplifiers
- 1RU, standby under 0.5 W
Specifications
| Output per channel | 4 x 500 W peak, 4 x 300 W RMS (8 ohm, 4 ohm, 70V, 100V) |
| Total output | 2000 W peak |
| Inputs | 4 balanced, 3-pin Euroblock, +28 dBu max |
| Outputs | 4 x 2-pin Euroblock |
| DSP | 32-bit/96 kHz, FIR/IIR, peak and RMS limiters, delay, Quest speaker library |
| Gain | 31 dB |
| THD | Below 0.008% |
| Control | TFT display and encoder, RJ45 network, GPIO |
| Mains | 100 to 240 VAC, IEC C14, standby below 0.5 W |
| Size and weight | 1RU, 482 x 44 x 344 mm, 5.9 kg |
Forefront Tip
Because every channel runs low-Z or 100V, the QXD-2K is a great one-box answer for a church or school hall: two channels for the main speakers, one for a foyer 100V zone and one for a cry room or back of house. Label each output at the Euroblock and in the amp so nobody plugs a low-Z box into a channel set for 100V.
